Claire M. Vargo, FNP
Nurse Practitioner · O Fallon, IL
Claire M. Vargo, FNP is a nurse practitioner with a practice address in O Fallon, Illinois, and NPI 1831712835, issued on May 26, 2020. Check the license (Illinois 209019577, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Claire M. Vargo
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 209019577 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3 Saint Elizabeth Blvd Ste 1800, O Fallon, IL 62269
- Phone
- (618) 233-6044
- Enumerated
- May 26, 2020
- Record last updated
- Feb 4, 2026
- Fax
- (618) 233-5195
- Medicaid ID
- 420105608 MO
- Medicare enrollment
- Enrolled (PECOS I20200729000845); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →
Also registered at 3 Saint Elizabeth Blvd Ste 1800
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sydney Pollmann, APRNFamily Nurse Practitioner1245032507
- Rece Portell, PAPhysician Assistant1841081379
- Hasan RehmanInterventional Cardiology Physician1386028124
- Muhammad Sheikh, M.D.Interventional Cardiology Physician1194107524
Verify Claire M. Vargo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209019577Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average nurse practitioner in 2024
16 Medicare Part D claims for 11 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $74.83
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Prairie Cardiovascular Consultants LtdO Fallon, IL
- Washington University Physicians IN Illinois IncAlton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Claire M. Vargo among 4,892 nurse practitioner records in Illinois
Claire M. Vargo, FNP is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 61% of them.
- NPI issued2020 · 61% of these records are older, 33% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2016 · median 2018 among the 3,389 with a school on file
- Record last updated2026 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 nurse practitioner records list a practice address in O Fallon
They are 19 of the 1,077 NPPES records with a practice address in O Fallon, and 4,892 nurse practitioner records in Illinois.
All 4,892 in Illinois → Every provider in O Fallon → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Bethany Bowen, FNPShiloh, IL 622691609293372
- Kimberly Burgess, AGNP-CO Fallon, IL 622691164956066
- Kelly Evans, FNPShiloh, IL 622691508341181
- Marianne GuthrieO Fallon, IL 622691609313758
- Charissa Holesko, ANPO Fallon, IL 622691619343274
- Jodi Jany, AGNPO Fallon, IL 622691811357833
- Katy LorenzoO Fallon, IL 622691205348133
- Sherry Pilkington, NPO Fallon, IL 622691962481770
Common questions
What is Claire M. Vargo, FNP's NPI number?
Claire M. Vargo, FNP's National Provider Identifier (NPI) is 1831712835, issued on May 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Claire M. Vargo, FNP located?
The NPPES record lists a practice address at 3 Saint Elizabeth Blvd Ste 1800, O Fallon, IL, 62269. Phone: (618) 233-6044. Providers update this record themselves, so call before visiting.
How can I verify Claire M. Vargo, FNP's license?
NPPES lists Illinois license number 209019577, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Claire M. Vargo, FNP prescribe under Medicare Part D?
In 2024, Claire M. Vargo, FNP had 16 Medicare Part D claims for 11 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Claire M. Vargo, FNP's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.